Reverse Osmosis

Which water filter actually removes microplastics, PFAS, and heavy metals? A no-hype guide to what the research says.

Most water filters don’t touch microplastics. Here are the four that do — from a $30 pitcher to a $600 under-sink system.

RO filters remove over 99% of microplastics from drinking water. Here’s the science behind why, and how it compares to other filter types.